钙钛矿(结构)
光伏
卤化物
材料科学
纳米技术
光伏系统
化学物理
化学
无机化学
结晶学
生态学
生物
作者
Teck Ming Koh,Krishnamoorthy Thirumal,Han Sen Soo,Nripan Mathews
出处
期刊:Chemsuschem
[Wiley]
日期:2016-09-15
卷期号:9 (18): 2541-2558
被引量:79
标识
DOI:10.1002/cssc.201601025
摘要
Although halide perovskites are able to deliver high power conversion efficiencies, their ambient stability still remains an obstacle for commercialization. Thus, promoting the ambient stability of perovskites has become a key research focus. In this review, we highlight the sources of instability in conventional 3 D perovskites, including water intercalation, ion migration, and thermal decomposition. Recently, the multidimensional perovskites approach has become one of the most promising strategies to enhance the stability of perovskites. As compared to pure 2 D perovskites, multidimensional perovskites typically possess more ideal band gaps, better charge transport, and lower exciton binding energy, which are essential for photovoltaic applications. The larger organic cations in multidimensional perovskites could also be more chemically stable at higher temperatures than the commonly used methylammonium cation. By combining 3 D and 2 D perovskites to form multidimensional perovskites, halide perovskite photovoltaics can attain both high efficiency and increased stability.
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